If you are a KDE user like me and wondered what’s wrong with Pidgin not showing on the systray. After I moved to KDE SC 4.5, suddenly Pidgin not showing in the systray anymore. The problem persisted in my Kubuntu laptop and Gentoo workstation.
Just now, I found out by accident that by default the systray in Pidgin never showed.
So, to fix that, go to Preferences. In the Interface tab, change “Show system tray icon” to “Always”.
Wow, I’ve been trying to search the patch almost 2 years and actually the reason is that simple? 😛